Circumnutations as a penetration strategy in a plant-root-inspired robot

In this paper, we present a study on peculiar plant root movements, named circumnutations, adopted by plants as an efficient strategy to penetrate the soil and implemented in robotic roots to improve their performance in exploration tasks. The robotic root is able to bend and interact with soil owing to a soft actuation mechanism based on the translation of rotary to linear motion by means of helical compression springs. The robotic root integrates a stimulus-oriented behavior combined with circumnutation movements, which leads to an extraordinarily large reduction (more than 80 times) of the force needed for penetration in artificial soil (sawdust) while performing circumnutations with respect to a straightforward movement.

[1]  Kenkichi Tanioka,et al.  An aluminum influence on root circumnutation in dark revealed by a new super-HARP (high-gain avalanche rushing amorphous photoconductor) camera. , 2004, Plant & cell physiology.

[2]  Mordechai E. Kislev,et al.  Mechanisms of Root Penetration of Seeds Germinating on the Soil Surface , 1979 .

[3]  Ali Sadeghi,et al.  Robotic mechanism for soil penetration inspired by plant root , 2013, 2013 IEEE International Conference on Robotics and Automation.

[4]  John E. Fisher.  EVIDENCE OF CIRCUMNUTATIONAL GROWTH MOVEMENTS OF RHIZOMES OF POA PRATENSIS L. THAT AID IN SOIL PENETRATION , 1964 .

[5]  Sergey Shabala,et al.  Root nutation modelled by two ion flux‐linked growth waves around the root , 1997 .

[6]  Sergio Mugnai,et al.  Nutation in Plants , 2015 .

[7]  Fernando Migliaccio,et al.  Circumnutation as an autonomous root movement in plants. , 2013, American journal of botany.

[8]  John Z. Kiss,et al.  Space‐Based Research on Plant Tropisms , 2008 .

[9]  L. Mahadevan,et al.  How the Venus flytrap snaps , 2005, Nature.

[10]  B. Mazzolai,et al.  Another Lesson from Plants: The Forward Osmosis-Based Actuator , 2014, PloS one.

[11]  Yutaka Miyazawa,et al.  A gene essential for hydrotropism in roots , 2007, Proceedings of the National Academy of Sciences.

[12]  Anders Johnsson,et al.  Application of a Theory for Circumnutations to Geotropic Movements , 1968 .

[13]  Anders Johnsson,et al.  Circumnutations: results from recent experiments on Earth and in space , 1997, Planta.

[14]  M. Stolarz.  Circumnutation as a visible plant action and reaction , 2009, Plant signaling & behavior.

[15]  J. Sean Humbert,et al.  Pitch and Heave Control of Robotic Samara Micro Air Vehicles , 2010 .

[16]  A. Trewavas.  What is plant behaviour? , 2009, Plant, cell & environment.

[17]  B. Mazzolai,et al.  A Novel Growing Device Inspired by Plant Root Soil Penetration Behaviors , 2014, PloS one.

[18]  Anders Johnsson,et al.  Experimental evidence and models on circumnutations , 1973 .

[19]  Ryoichi Ikeda,et al.  Ecological significance of root tip rotation for seedling establishment of Oryza sativa L , 1999, Ecological Research.

[20]  Lucia Beccai,et al.  Plants as Model in Biomimetics and Biorobotics: New Perspectives , 2013, Front. Bioeng. Biotechnol..

[21]  K. Bennett,et al.  The power of movement in plants. , 1998, Trends in ecology & evolution.

[22]  Barbara Mazzolai,et al.  Analysis of movement in primary maize roots , 2012, Biologia.

[23]  Kyu-Jin Cho,et al.  Towards a bio-mimetic flytrap robot based on a snap-through mechanism , 2010, 2010 3rd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics.

[24]  A. H. Brown,et al.  Circumnutations: From Darwin to Space Flights , 1993, Plant physiology.

[25]  B Mazzolai,et al.  A novel tracking tool for the analysis of plant-root tip movements , 2013, Bioinspiration & biomimetics.

[26]  Jinxing Lin,et al.  The Signal Transducer NPH3 Integrates the Phototropin1 Photosensor with PIN2-Based Polar Auxin Transport in Arabidopsis Root Phototropism[C][W] , 2012, Plant Cell.